GB Reman Expands Gasoline Direct Fuel Injection Program
The expansion includes 17 new GDI part numbers, including injectors, seal kits, fuel lines and a seal replacement tool kit.
7 Reasons Direct-Injection High-Pressure Fuel Pumps Fail
High-pressure fuel pumps can malfunction and/or fail due to a number of factors.
Toyota D-4S: Port Fuel Or Direct Fuel Injection? Why Not Both?
You may soon see a Toyota vehicle that has both direct fuel injection and port fuel injection.
Tech Tips: Direct Fuel Injection Cleaning
Models: 2009-2014 GM Vehicles With Any of the Following Direct-Injected Gasoline Engines 2.0L (RPO LNF) 2.4L (RPO LAF, LEA, or LUK) 2.8L (RPO LAU) 3.0L (RPO LF1 or LFW) 3.6L (RPO LFX or LLT) Some customers may complain of a MIL (malfunction indicator lamp, or check engine light) and engine misfire. In some cases, the
Solving Carbon Deposits In Direct Fuel Injection Engines
When the early direct-injection engines hit the three-year or 30,000-mile mark, some developed driveablity problems due to carbon buildup on the necks of the intake valves.
Audi Direct-Injection Issues & Carbon Deposits
In 2006, we saw the first of the direct-injection cars. VW and Audi located the injectors directly into the combustion chambers for greater efficiency. By this time, we had been seeing variable valve timing for at least six years, and there were a few cars that had variable intake runners. The new A4s and Passats had both and, in addition to the in-tank fuel pump, they had a cam-driven, Âmechanical high-pressure fuel pump that ran the fuel pressure as high as 120 bar. They are great cars, but began to exhibit a few problems that we started to see after a few years.
Understanding Fuel Injection
Though many different terms have been used for the technology, it really just comes down to indirect or direct.
The Next Evolution Of Fuel Injection
You may soon see a vehicle that has both direct fuel injection and port fuel injection. It could be a Toyota, Ford or other make.
Secondary Air Injection Tips
Secondary air injection can be supplied actively from an electric air pump or passively from pulse pressure in the exhaust system. In a passive/pulse system, air is drawn in when a valve opens from vacuum created through exhaust flow. In an active system, air is blown from an electric pump, which allows for better control.
Fueling Choices: Factors For Carburetion Or A Bolt-On TBI Fuel Injection System
If you’re building a performance engine, should you fuel it with a carburetor or some type of electronic fuel injection (EFI) system? If the application is a late-model vehicle that came factory-equipped with EFI, that decision has already been made for you.
